9 protons, 9 electrons and 10 neutrons in F-19 isotope.
An alpha particle is composed of two protons and two neutrons.
In-115 isotope has 66 neutrons
Elements with more protons and neutrons than iron are believed to have formed through processes like supernova explosions. These heavy elements, such as gold and uranium, are created in the intense conditions of these cosmic events.
To provide the attractive binding of the nuclear strong force, without adding to the electromagnetic force. Without neutrons, the only chemical element would be hydrogen.
Fluorine (18.994-9=10 neutrons) and Neon (20.180-10=10 neutrons)
Oxygen-18, fluorine-19 and neon-20 atoms have 10 neutrons each.
For the most part Helium has two neutrons, the exception is with isotopes.
neutrons and protons
An atom of plutonium contain protons, neutrons and electrons - not other elements.
Neon, and certain isomers of other elements.
Neutrons have size (about 10-13 cm in diameter) and mass (1.6749 x 10-27 kg).
No, none of two elements in any group have the same number of neutrons. But there are such elements across a period, and they are known as isotones. Some examples are; carbon-12 and nitrogen-13 oxygen-18 and fluorine-19 phosphorus-31 and sulfur-32
All chemical elements (excepting the isotope 1H) contain neutrons.
Elelments are determined by the amount of protons they have. While different elements can have the same number of neutrons and protons, no two different elements can have the same amount of protons.
There generally isn't a problem; the more protons an atom has, the more neutrons it takes to glue them together. A Helium atom has two protons and generally two neutrons; in every other stable atom, there are more neutrons than protons. There are isotopes of elements with fewer-than-normal numbers of neutrons; these isotopes are generally unstable and radioactive, and will generally decay into other elements.
Two atoms with the same number of protons are not two elements but one element. If they have differing numbers of neutrons, however, they are said to be of different isotopes.